The murder of an 11-month-old boy by his mother could probably have been prevented, a report has concluded.

Callum Wilson, who died after being taken to hospital with a brain injury and multiple fractures in March 2011, might not have died if health and social care workers had not underestimated the risks to his safety and he had been more closely monitored.

In the fortnight before Callum's death, professionals missed opportunities to intervene, which, if they had been taken, were "very likely to have led to the detection of serious injuries and would probably have prevented his death", said the review led by Windsor and Maidenhead local safeguarding children board.

Emma Wilson was jailed for a minimum of 14 years at the Old Bailey in January for the murder. The trial heard that she kept Callum's birth a secret from her parents and that her then partner insisted she put him up for adoption. Callum was put in foster care but returned to her mother in November 2010.

The report said professionals underestimated the complexity of Callum's family circumstances, not understanding the concern associated with Wilson's denial or concealment of her pregnancies.

A month after Callum's return to his mother, professionals noted scratches on his face, and a month later bruises on his head and face. These were usually blamed by Wilson on his older brother or on falls.

Wilson lied to staff and parents at a local children's centre, claiming Callum was her cousin's son and on one occasion that bruising on Callum's face had been caused by an older sister who did not exist. A postmortem showed Callum died from a "very serious head injury" and had numerous bruises to his face, head, chest, back and legs. He had also suffered a number of fractures that predated his death by at least two weeks.

The report said the pattern of two concealed pregnancies "should without doubt have led professionals to be curious about the mother's personality and mental health, even if superficially she was offering good care". It suggested the "relative economic wellbeing" of the family and the image they presented was a "contributory factor in the children's centre's underestimation of the risk factors and vulnerability of the family and made it less likely that staff would be suspicious of the information given".

The report made a series of recommendations for improving multi-agency responses to any future similar cases, including identifying abuse, improving electronic transfer of medical notes to GPs, and better training and guidance for professionals.

A statement issued on behalf of the agencies involved said all the recommendations had been implemented before the report was formally published on Monday. These included formal reporting of bruising in very young children and a new policy on concealed pregnancies.

"We can never guarantee the total safely of every child who comes into our care or seeks our help," the statement said. "However, we can work to ensure that, as far as possible, the mistakes made in Callum's case will not be repeated and that staff are given all the necessary support, training and guidance to enable them to deliver the service that every child deserves."